Error 8002f334

I have fat ps3 was with 4.92 cfw i think i update it manualy through the internet by mistake and the update got stuck in half and got the error i saw a video on youtube how to fix it i format the hdd and put the update in a flash and now while i try to update there is no image show on the tv i was using the hdmi i tried also the av compnent it doesn’t anything the it also turn off by itself after few minutes i want help if anyone know